LTC1861_15 Datasheet, PDF (16/16 Pages) Linear Technology – Power, 12-Bit, 250ksps 1- and 2-Channel ADCs in MSOP

LTC1860/LTC1861
TYPICAL APPLICATION
Sample Two Channels Simultaneously with a Single Input ADC
f₁
(0V TO 0.66V)
4.096V
REF
28.7k
10k
f₂
(0V TO 2V)
0.1MF
5k
+
1/2
LT1492
–
20k
1007
100pF
10k
5pF
1MF
5k
0.1MF
5V
+
8 ^0.1MF
1/2
LT1492
–₄
1007
100pF
5V
4.096V
REF
0.1MF
1MF
0.1MF
1MF
2
IN+
IN–
3
8
1
V_CC
REF 7
SCK
6
LTC1860 SDO
5
CONV
GND
4
1860 TA03
RELATED PARTS
PART NUMBER
12-Bit Serial I/o ADCs
LTC1286/LTC1298
LTC1400
LTC1401
LTC1402
LTC1404
14-Bit Serial I/O ADCs
LTC1417
LTC1418
16-Bit Serial I/O ADCs
LTC1609
LTC1864/LTC1865
References
LT1460
LT1790
SAMPLE RATE
POWER DISSIPATION
12.5ksps/11.1ksps
400ksps
200ksps
2.2Msps
600ksps
1.3mW/1.7mW
75mW
15mW
90mW
25mW
400ksps
200ksps
20mW
15mW
200ksps
250ksps
65mW
4.25mW
Micropower Precision Series Reference
Micropower Low Dropout Reference
DESCRIPTION
1-Channel with Ref. Input (LTC1286), 2-Channel (LTC1298), 5V
1-Channel, Bipolar or Unipolar Operation, Internal Reference, 5V
SO-8 with Internal Reference, 3V
Serial I/O, Bipolar or Unipolar, Internal Reference
SO-8 with Internal Reference, Bipolar or Unipolar, 5V
16-Pin SSOP, Unipolar or Bipolar, Reference, 5V
Serial/Parallel I/O, Internal Reference, 5V
Configurable Bipolar or Unipolar Input Ranges, 5V
SO-8, MS8, 1-Channel, 5V/SO-8, MS10, 2-Channel, 5V
Bandgap, 130μA Supply Current, 10ppm/°C, Available in SOT-23
60μA Supply Current, 10ppm/°C, SOT-23
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
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18601fa
LT 1207 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2007